Reflection Coefficient

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reflection coefficient

[ri′flek·shən ‚kō·i‚fish·ənt]
(physics)
The ratio of the amplitude of a wave reflected from a surface to the amplitude of the incident wave. Also known as coefficient of reflection.

Reflection Coefficient

 

the ratio of the radiant flux reflected by a body to the radiant flux incident on it. The concept of an amplitude reflection coefficient, that is, the ratio of the amplitudes of the reflected and incident waves, is sometimes used —for example, for radio waves. In general, the reflection coefficient is the sum of a direct reflection coefficient and a diffuse reflection coefficient.

References in periodicals archive ?
Middle Pieces that shall: Be suitable for use at temperatures between 3 K and 300 K (~ -270 AC and + 25 AC); Operate at frequencies ranging from 158 to 211 GHz; Be used for at least 20 years in a high vacuum environment; and Be produced according to a Contracting Authority supplied Procurement Specification (PS), with requirements that include: RF transmission and reflection coefficients (S-parameters); Mechanical and wave guide Interfaces; Criteria for long-term vacuum compatibility.
The measured and calculated reflection coefficients were determined which gave us the required relative permittivity.
This ID boundary-value problem can be solved to yield expressions for transmission and reflection coefficients using the Fresnel equation formulation.
They used it to develop a mode decomposition technique for an elastodynamic field and semi-analytically obtained the reflection coefficients for the oblique incidence problem.
From the well-known Kubleka-Munk1 approach and its numerous derivations to more advanced models, (13) the RTE has been able to model with relative success, the reflection coefficients of a variety of decorative paint films as well as a wide range of heterogeneous media from solar panels (14) to biological tissues (15) and cosmetics.
Here, and are the top and base reflection coefficients and T is layer thickness.
In [1] a solution to the robust pole assignment problem via reflection coefficients of polynomials has been provided for discrete-time single-input single-output (SISO) linear systems following the ideas of fixed-order output controller design.
The complex absolute values of speeds and reflection coefficients of plane are computed numerically with the help of FORTRAN program of Ferrari's method.
Other topics include transmission and reflection coefficients for identifying damage in one-dimensional elements, the response characteristics of various impact patterns on the smart bumper of automotives, and applying cyclic correlation analysis to gear damage detection.
Note that the logarithmic relationship between the reflection coefficient and ERL evident in Equation 3 indicates that increasing values of ERL follow from reflection coefficients that approach unity.
With knowledge of the true reflection coefficients of different plants, the model provides a framework to evaluate soil water availability in different circumstances.